decompression

noun
de·​com·​pres·​sion | \ -ˈpresh-ən How to pronounce decompression (audio) \

Medical Definition of decompression

: the act or process of releasing from pressure or compression: as
a : reduction of pressure:
(1) : the decrease of ambient air pressure experienced in an air lock on return to atmospheric pressure after a period of breathing compressed air (as in a diving bell or caisson) or experienced in ascent to a great altitude without a pressure suit or pressurized cabin
(2) : the decrease of water pressure experienced by a diver when ascending rapidly
b : an operation or technique used to relieve pressure upon an organ (as in fractures of the skull or spine) or within a hollow organ (as in intestinal obstruction)

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“Decompression.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/decompression. Accessed 26 Sep. 2020.

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